Activity in Centaur-like Jupiter-family Comet 2023 RN₃

Hsieh, Henry H.; Kelley, Michael S. P.; Lister, Tim A.; Usher, Helen; Gomez, Edward; Chatelain, Joseph P. and Greenstreet, Sarah (2023). Activity in Centaur-like Jupiter-family Comet 2023 RN₃. Research Notes of the AAS, 7(12), article no. 263.

DOI: https://doi.org/10.3847/2515-5172/ad12ce

Abstract

We present multi-filter observations of Centaur-like Jupiter-family comet 2023 RN₃ conducted as part of the Las Cumbres Observatory Outbursting Objects Key Project, as well as analysis of archival data in which 2023 RN₃ was expected to be present. We find clear evidence of comet-like mass loss in the form of an extended morphology on UT 2023 November 16 and 18, and an increase in intrinsic brightness of >4 mag between 2022 September and 2023 November. We also report broadband colors for the coma of g′−r′=0.61±0.03 , r′−i′=0.30±0.03 , and i′−z′=0.04±0.08 , giving a g′r′i′ spectral slope of S′=(12±2)% /100 nm.

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